Double-crowned 2D semiconductor nanoplatelets with bicolor power-tunable emission
![Thumbnail](/xmlui/bitstream/handle/10234/202091/s41467-022-32713-2.pdf.jpg?sequence=4&isAllowed=y)
View/ Open
Impact
![Google Scholar](/xmlui/themes/Mirage2/images/uji/logo_google.png)
![Microsoft Academico](/xmlui/themes/Mirage2/images/uji/logo_microsoft.png)
Metadata
Show full item recordcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7013
comunitat-uji-handle3:10234/8638
comunitat-uji-handle4:
INVESTIGACIONMetadata
Title
Double-crowned 2D semiconductor nanoplatelets with bicolor power-tunable emissionAuthor (s)
Date
2022Publisher
Springer NatureBibliographic citation
DABARD, Corentin, et al. Double-crowned 2D semiconductor nanoplatelets with bicolor power-tunable emission. Nature Communications, 2022, vol. 13, no 1, p. 5094.Type
info:eu-repo/semantics/articlePublisher version
https://www.nature.com/articles/s41467-022-32713-2Version
info:eu-repo/semantics/publishedVersionAbstract
Nanocrystals (NCs) are now established building blocks for optoelectronics and their use as down converters for large gamut displays has been their first mass market. NC integration relies on a combination of green ... [+]
Nanocrystals (NCs) are now established building blocks for optoelectronics and their use as down converters for large gamut displays has been their first mass market. NC integration relies on a combination of green and red NCs into a blend, which rises post-growth formulation issues. A careful engineering of the NCs may enable dual emissions from a single NC population which violates Kasha’s rule, which stipulates that emission should occur at the band edge. Thus, in addition to an attentive control of band alignment to obtain green and red signals, non-radiative decay paths also have to be carefully slowed down to enable emission away from the ground state. Here, we demonstrate that core/crown/crown 2D nanoplatelets (NPLs), made of CdSe/CdTe/CdSe, can combine a large volume and a type-II band alignment enabling simultaneously red and narrow green emissions. Moreover, we demonstrate that the ratio of the two emissions can be tuned by the incident power, which results in a saturation of the red emission due to non-radiative Auger recombination that affects this emission much stronger than the green one. Finally, we also show that dual-color, power tunable, emission can be obtained through an electrical excitation. [-]
Is part of
Nature Communications, 2022, vol. 13, no 1.Funder Name
ERC | Ne2Dem | Region Ile-de-France in the framework of DIM Nano-K (grant dopQD) | French state funds | IPER-Nano2 | Ministerio de Ciencia e Innovación | United States Department of Energy (DOE) | Universitat Jaume I
Project code
Grant number 756225 | Grant number 853049 | ANR-11-IDEX-0004-02 | ANR-18-CE30-0023-01 | ANR-19-CE24-0022 | ANR-19-CE09-0017 | ANR-19-CE09-0026 | ANR-20-ASTR-0008-01 | ANR-21-CE24-0012-02 | ANR-21-CE09-0029 | ANR-22-CE09 | PID2021-128659NB-I00 | DE-AC02-06CH11357 | UJI-B2021-06
Rights
© The Author(s) 2022
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
This item appears in the folowing collection(s)
- QFA_Articles [825]